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Cheap flights from Chicago O'Hare Intl Airport to Iaşi from $360

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Iaşi departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Iaşi

Cheap round-trip flights

Austrian Airlines Logo
4:20 pm - 3:20 pmORD-IAS
15h 00m1 stop
Austrian Airlines Logo
4:05 pm - 3:00 pmIAS-ORD
29h 55m1 stop
$590Austrian Airlines
Find Deal
Fri, Oct 24 - Fri, Oct 31
Austrian Airlines Logo
12:55 pm - 3:20 pmORD-IAS
18h 25m2 stops
Austrian Airlines Logo
4:05 pm - 3:00 pmIAS-ORD
29h 55m1 stop
$596Austrian Airlines
Find Deal
Fri, Oct 24 - Fri, Oct 31
Austrian Airlines Logo
4:20 pm - 3:20 pmORD-IAS
15h 00m1 stop
Austrian Airlines Logo
4:00 pm - 1:20 pmIAS-ORD
29h 20m1 stop
$612Austrian Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 16
Logo
12:55 pm - 3:20 pmORD-IAS
18h 25m2 stops
Logo
4:05 pm - 2:10 pmIAS-ORD
29h 05m2 stops
$614
Find Deal
Fri, Oct 24 - Fri, Oct 31
Logo
4:20 pm - 3:20 pmORD-IAS
15h 00m1 stop
Logo
4:00 pm - 12:55 pmIAS-ORD
28h 55m2 stops
$615
Find Deal
Thu, Oct 9 - Thu, Oct 16
Lufthansa Logo
4:20 pm - 3:20 pmORD-IAS
39h 00m2 stops
Lufthansa Logo
4:05 pm - 1:10 pmIAS-ORD
29h 05m2 stops
$621Lufthansa
Find Deal
Wed, Dec 3 - Sun, Dec 7
Lufthansa Logo
10:35 pm - 3:20 pmORD-IAS
32h 45m2 stops
Lufthansa Logo
4:05 pm - 1:10 pmIAS-ORD
29h 05m2 stops
$622Lufthansa
Find Deal
Wed, Dec 3 - Sun, Dec 7
Lufthansa Logo
9:40 pm - 1:20 amORD-IAS
19h 40m2 stops
Lufthansa Logo
4:00 pm - 12:55 pmIAS-ORD
28h 55m2 stops
$654Lufthansa
Find Deal
Wed, Oct 8 - Tue, Oct 21
Austrian Airlines Logo
4:20 pm - 3:20 pmORD-IAS
15h 00m1 stop
Austrian Airlines Logo
4:05 pm - 2:00 pmIAS-ORD
29h 55m1 stop
$667Austrian Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Emirates Logo
8:35 pm - 1:45 pmORD-IAS
33h 10m1 stop
Emirates Logo
2:45 pm - 3:45 pmIAS-ORD
33h 00m1 stop
$1,411Emirates
Find Deal
Wed, Oct 8 - Tue, Oct 21

Austrian Airlines flights from Chicago O'Hare Intl Airport to Iaşi

Our best Austrian Airlines deals on Chicago O'Hare Intl Airport to Iaşi flight tickets
Austrian Airlines
Oct 24
ORD4:20 pmChicago O'Hare Intl
15h 00m
1 stop
IAS3:20 pmIasi
Oct 31
IAS4:05 pmIasi
29h 55m
1 stop
ORD3:00 pmChicago O'Hare Intl
$590
Find similar
Austrian Airlines
Oct 24
ORD12:55 pmChicago O'Hare Intl
18h 25m
2 stops
IAS3:20 pmIasi
Oct 31
IAS4:05 pmIasi
29h 55m
1 stop
ORD3:00 pmChicago O'Hare Intl
$596
Find similar
Austrian Airlines
Oct 9
ORD4:20 pmChicago O'Hare Intl
15h 00m
1 stop
IAS3:20 pmIasi
Oct 16
IAS4:00 pmIasi
29h 20m
1 stop
ORD1:20 pmChicago O'Hare Intl
$612
Find similar

Lufthansa flights from Chicago O'Hare Intl Airport to Iaşi

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Iaşi flight tickets
Lufthansa
Dec 3
ORD4:20 pmChicago O'Hare Intl
39h 00m
2 stops
IAS3:20 pmIasi
Dec 7
IAS4:05 pmIasi
29h 05m
2 stops
ORD1:10 pmChicago O'Hare Intl
$621
Find similar
Lufthansa
Dec 3
ORD10:35 pmChicago O'Hare Intl
32h 45m
2 stops
IAS3:20 pmIasi
Dec 7
IAS4:05 pmIasi
29h 05m
2 stops
ORD1:10 pmChicago O'Hare Intl
$622
Find similar
Lufthansa
Oct 8
ORD9:40 pmChicago O'Hare Intl
19h 40m
2 stops
IAS1:20 amIasi
Oct 21
IAS4:00 pmIasi
28h 55m
2 stops
ORD12:55 pmChicago O'Hare Intl
$654
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Iaşi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Iaşi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Fri 10/24

4:20 pm-3:20 pm

1 stop15h 00m

Iasi

Fri 10/31

4:05 pm-3:00 pm

1 stop29h 55m

$590

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Fri 10/24

12:55 pm-3:20 pm

2 stops18h 25m

Iasi

Fri 10/31

4:05 pm-3:00 pm

1 stop29h 55m

$596

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Thu 10/9

4:20 pm-3:20 pm

1 stop15h 00m

Iasi

Thu 10/16

4:00 pm-1:20 pm

1 stop29h 20m

$612

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Fri 10/24

12:55 pm-3:20 pm

2 stops18h 25m

Iasi

Fri 10/31

4:05 pm-2:10 pm

2 stops29h 05m

$614

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Thu 10/9

4:20 pm-3:20 pm

1 stop15h 00m

Iasi

Thu 10/16

4:00 pm-12:55 pm

2 stops28h 55m

$615

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 12/3

4:20 pm-3:20 pm

2 stops39h 00m

Iasi

Sun 12/7

4:05 pm-1:10 pm

2 stops29h 05m

$621

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 12/3

10:35 pm-3:20 pm

2 stops32h 45m

Iasi

Sun 12/7

4:05 pm-1:10 pm

2 stops29h 05m

$622

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 10/8

9:40 pm-1:20 am

2 stops19h 40m

Iasi

Tue 10/21

4:00 pm-12:55 pm

2 stops28h 55m

$654

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 12/3

4:20 pm-3:20 pm

1 stop15h 00m

Iasi

Sun 12/7

4:05 pm-2:00 pm

1 stop29h 55m

$667

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Wed 10/8

8:35 pm-1:45 pm

1 stop33h 10m

Iasi

Tue 10/21

2:45 pm-3:45 pm

1 stop33h 00m

$1,411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Iaşi from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Iaşi

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Iaşi?

The cheapest day to depart on your flight to Iaşi is on a Monday when prices can be found for as low as $646. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Iaşi is Sunday, with ticket prices averaging around $1,038.

When to book flights from Chicago O'Hare Intl Airport to Iaşi

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Iaşi according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Iaşi (ORD to IAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Iaşi

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to Iaşi. There are no popular flight routes from Chicago O'Hare Intl Airport to Iaşi.
Search flight deals

  • How far is Chicago O'Hare Intl to Iasi by plane?

    The distance between Chicago O'Hare Intl and Iasi is about 5120.7 mi. Flights usually cover this in 15h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Iasi Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Iasi Airport are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Iasi Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Iasi Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Iasi Airport.

  • What documentation or ID do you need to fly to Iasi Airport?

    The travel and health documents you'll need for your trip to Iasi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Iasi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Iaşi?

Best airlines flying from Chicago O'Hare Intl Airport to Iaşi

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Iaşi with momondo
Airline
Rating
Free Cancellation
Price
Austrian AirlinesPriceFrom $613Free CancellationRating
7.6
850 reviews
Search Austrian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Iaşi?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Iaşi. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to Iaşi with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Chicago to Iaşi flights to just show those with flexible booking policies.

How can momondo help me find flights from Chicago to Iaşi?

momondo provides multiple filters to help you find the best flight to Iaşi from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Iaşi right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Iaşi from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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